<template>
    <div class="list" ref="wrapper">
        <div>
            <div class="area">
                <div class="title border-topbottom">当前城市</div>
                <div class="button-list">
                    <div class="button-wrapper">
                       <div class="button">{{this.$store.state.city}}</div>
                    </div>
                </div>
            </div>
            <div class="area">
                <div class="title border-topbottom">热门城市</div>
                <div class="button-list">
                    <div class="button-wrapper"
                         v-for="item of hot"
                         :key="item.id"
                         @click="handleCityClick(item.name)"
                    >
                       <div class="button">{{item.name}}</div>
                    </div>
                </div>
            </div>
            <div class="area-wrap">
                <div class="area" v-for="(item,key) of cities" :key="key" :ref="key">
                    <div class="title border-topbottom">{{key}}</div>
                    <div class="item-list">
                        <div class="item border-bottom"
                            v-for="innerItem of item"
                            :key="innerItem.id"
                            @click="handleCityClick(innerItem.name)"
                        >
                            {{innerItem.name}}
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
import Bscroll from 'better-scroll'
export default {
  name: 'cityList',
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  methods: {
    handleCityClick (city) {
    //   alert(city)
      this.$store.commit('changeCity', city)
      this.$router.push('/')
    }
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.wrapper)
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        this.scroll.scrollToElement(element)
      }
    }
  }
}
</script>

<style lang="stylus" scoped>
    @import '~s/varibles.styl'
    .border-topbottom
        &:before
            border-color #ccc
        &:before
            border-color #ccc
    .border-bottom
        &:before
            border-color #ccc
        &:before
            border-color #ccc
    .list
        overflow hidden
        position absolute
        top 1.58rem
        left 0
        right 0
        bottom 0
        .title
            line-height .46rem
            font-size .26rem
            background-color: #eee
            padding-left .2rem
            color #666
        .button-list
            overflow hidden
            padding .1rem .6rem .1rem .1rem
            .button-wrapper
                float: left
                width 33.33%
                .button
                    text-align center
                    margin .1rem
                    padding .1rem 0
                    border .02rem solid #ccc
                    border-radius .06rem
        .item-list
            .item
                line-height .76rem
                padding-left .2rem
</style>
